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Siemens 3RH2911-1GA40 Front Mount Auxiliary Switch - 4 NO

Siemens 3RH2911-1GA40 Front Mount Auxiliary Switch

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ManufacturerSiemens

Part number3RH2911-1GA40

Contacts 4 NO

Mounting Front

Terminals Screw

Compatibility 3RH2140, 3RH2440

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Veteran-owned

CAGE: 9NK75

4 Normally Open (NO) Contacts Front Mounting Screw Terminals Physically Coded Compatible with 3RH2140/3RH2440

Product description

The Siemens 3RH2911-1GA40 is a front-mounting auxiliary switch designed to expand the functionality of Siemens 3RH2140 and 3RH2440 contactor relays. This component offers four (4) Normally Open (NO) contacts, providing additional control and signaling capabilities for industrial applications. It features robust screw terminals for secure connections and a physically coded design for correct installation.

This auxiliary switch is ideal for use in motor control circuits, control panels, and automation systems where additional signaling or interlocking functions are required. Its compatibility is specifically limited to Siemens 3RH2140 and 3RH2440 contactor relays, ensuring seamless integration and optimal performance within these systems, adhering to EN 50011 standards.

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Technical specifications

Contacts	4 NO
Mounting	Front
Terminals	Screw
Compatibility	3RH2140, 3RH2440
Standard	EN 50011

Common applications

Motor Control

Control Panels

Automation Systems

Signaling Circuits

Interlocking Functions

Compatible systems

Siemens 3RH2140 Siemens 3RH2440

Also known as

Siemens 3RH2911-1GA40 Aux Switch Siemens Contactor Relay Auxiliary

Replaces / compatible with

This auxiliary switch is specifically designed for use with Siemens 3RH2140 and 3RH2440 contactor relays.

Technical note

Expert tip

Ensure the 'physically coded' design is correctly aligned with the compatible 3RH2140 or 3RH2440 contactor relay during installation to prevent damage or malfunction.

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Frequently asked questions

What contactors is the Siemens 3RH2911-1GA40 compatible with?

The Siemens 3RH2911-1GA40 auxiliary switch is specifically designed for use with Siemens 3RH2140 and 3RH2440 contactor relays. It is physically coded and only combinable with these specific models according to EN 50011 standards.